i, barack obama, do solemnly swear. >> i barack obama do solemnly swear. >> that i will faithfully execute. >> that i will faithfully execute. >> the office of president of the united states. >> the office of president of the united states. >> and will, to the best of my ability. >> and will, to the best of my ability. >> preserve, protect and defend. >> preserve, protect and defend. >> the constitution of the united states. >> the constitution of the united states. >> so help you god. >> so help me good. >> congratulations, mr. president. [ applause ] ♪ [ music ] ♪ [ applause ] [ applause ] . >> ladies and gentlemen, it is my great privilege and disticket honor to -- distinkt honor to introduce the 44th president of the united states of america. barack obama. [ applause ] . >> thank you. [ applause ] . >> thank you seech. the vice president -- thank you so much. the very sincerely biden, mr. chief justice, members of the united states congress, the distinguished guests, and fellow citizens. each time we gather to inauguration a president, an enview the strength of the constitution. we